Pattern grading machine



April 3, 1934- T. A. KESTELL PATTERN GRADING MACHINE Filed April 2, 19305 Sheets-Sheet 1 A ril 3, 1934. T. A. KESTELL PATTERN GRADING MACHINEFiled April 2, 1930 5 Sheets-Sheet 2 April 3, 1934. -r. A. KESTELLPATTERN GRADING MACHINE Filed April 2, 1930 5 Sheets-Sheet 5 April 3,1934. T, A, KESTELL PATTERN GRADING MACHINE Filed April 2, 1930 5Sheets-Sheet 4 3 v 55 EN 7 April 3, 1934. T. A. KESTELL 1,953,236

PATTERN GRADING MACHINE Filed April 2, 1930 5 Sheets-Sheet 5 wirPatented Apr. 3, I934 ATENT FFICE PATTERN GRADING MACHINE Thomas AubreyKestell, Leicester, England, as-

signor to United Shoe Machinery Corporation, Paterson, N. 5., acorporation of New Jersey Application April 2, 1930, Serial Nam-441,104In Great Britain April 19, 1929 22 Claims.

This invention relates to pattern reproducing machines, that is,machines for reproducing model in a work piece, and is illustratedherein as embodied in a pattern grading machine for producing shoe upperpatterns from a model.

Machines of the type shown comprise four primary instrumentalities,namely, a model holder,

work holder, a model guide or follower, and a cutting tool,interconnected by two pantographic mechanisms operating to magnify orreduce the length and Width of the model independently, in the workpiece.

Gwing to peculiarities of style and of the design or reduce), differentparts of the upper pattern at different rates. This necessitates achange in he adjustment of one or both of the pantographs while the workis being done, and in general such a change of adjustment will causedefinite relative movement between some of the four primaryinstrumentalities which causes a jog in the work. It is a principalobject of this invention to provide a convenient and accurate means ofavoiding this difficulty.

Accordingly, the present invention provides means for determiningaccurately and compenrating for the relative movement of the primarynstrumentalities caused by a change in a grading factor effected by achange of adjustment of a pantograph. As is usual in machines of thischarc. tor, the pantograph comprises a lever connected two of theprimary instrumentalities at two of fulcra and having an adjustablefulcrum to change the grading factor. In the illustrated machine I haveprovided an additional adjustment for another of the iulcra by means ofwhich the relative movement of the primary instrumen 'f' caused bychanging the grading factor can be compensated for, thereby eliminatingthe jog In other words, this compensatory adjustment does change themechanical advantage of the grading lever but causes a relative movementof the primary instrumentality equal and opposite to that caused by thechange of the grading factor. I have provided also a suitable scale andpointer for measuring accurately the movement for which compensation isto. be made.

If desired, this novel mechanism can be used to chang the grading factorgradually by mak ing a series of grading factor changes andcorresponding compensatory adjustments.

The compensatory adjustment mechanism proby the invention is also ofvalue in effecting grade restrictions Without change of grading factor.For example, it is undesirable to grade the entire height of the leg ofa boot, since the large sizes would then have an unsatisfactoryappearance. known this problem is dealt with by bending the pantographlever at a point provided therein, without necessarily changing thegrading factor, thus causing a jog in the work to the extent of thegrade restriction desired. The compensatory adjustment above described,when operated without changing the grading factor or otherwisedisturbing the adjustment of the machine, will accomplish the sameresult; 7

In accordance with a feature of the invention the mechanisms forefiecting the compensatory adjustments in length and width are soarranged that they can be operated by a single adjusting member, and theconstruction is such that either one alone or both together can beoperated, and in the latter case, so that the amounts of the graderestriction in length and width can be varied to give the desiredresultant along a line oblique to both the length and Width.

Still another feature of the invention provides means for adding a stripof constant width on the edge of a graded pattern as for a seam orlasting allowance. In the illustrated machine this is accomplished bydisplacing the model guide-pin an amount equal to the width of the striprequired, and means is provided whereby this displacement may be keptperpendicular to the edge of the pattern at every point. The guide pinis mounted in a rotatable disk to effect this, and the disk iscontrolled by the same means as is used to vary the length and Widthgrade restrictions above discussed.

Another feature of the invention resides in the mechanism for adjustingthe pantograph mecha nisms to the desired grading factor. This, asillustrated, is effected by means of two independent adjustments, one ofwhich determines directly a certain grade per unit travel along a model,and the second of which determines successive simple multiples of thegrade determined by the first.

These and other features of the invention will best be understood by aconsideration of the following description, taken in connection with theaccompanying drawings, in which,

Fig. 1 is a front elevation of the said illus-. trative embodiment,certain details being omitted for the sake of clearness;

Fig. 2 is a plan view of the said embodiment In grading machinesheretofore partly broken away and with certain details omitted;

Fig. 3 is a front elevation, to an enlarged scale, showing certain partsseen in Figure 1;

Fig. 4 is a plan view showing certain details shown in Figure 2 andhereinafter described;

Fig. 5 is a plan View, on an enlarged scale, of model guiding mechanismhereinafter described;

Fig. 6 is an end view, looking from the right of Fig. 2 and showing onan enlarged scale certain details indicated therein;

Fig. 7 is a diagram illustrating the pantograph structure; and

Figs. 8 and 9 are details of the control device.

This particular illustrative embodiment has a main frame comprising avertical column or standard 1 at the upper end of which is a horizontalgoose-neck arm 3 which extends toward the left of the machine as seen inFig. 1 and overlies a second arm 5 situated directly beneath it andparallel with it. A vertical reciprocable punch 7 is mounted in fixedbearings in the lefthand free end of the goose-neck arm and cooperateswith a fixed die-block 9 situated in the left-hand free end of thesecond arm 5 to punch out a pattern as hereinafter described. The punch7 is operated by eccentric mechanism at the left-hand end of ahorizontal shaft 11 mounted in the goose-neck arm 3 and provided at itsright-hand end with fast and loose pulleys (as shown) whereby the shaftmay be driven, for example, from an electric motor. A treadle 12 isprovided whereby the punch, though still reciprocating, can be raisedout of operation when desired. The co-operating punch 7 and die-block 9constitute, as aforesaid, the pattern cutting instrumentalities and itwill be appreciated from the above description that the actual stationat which the cutting of the pattern occurs is fixed relatively to theframe of the machine.

A horizontally movable model-guiding device generally designated by thereference number 13 (Fig. 1) is mounted to move along and across theupper side of the goose-neck arm 3 (as hereinafter described) and thismodel-guiding device comprises, in the illustrative embodiment, anupstanding pin 15 hereinafter termed the guide-pin.

A bracket 17 secured to the machine column below the horizontal arms 3and 5 extends horizontally from the column parallel to the arms, thearms and the bracket lying in the same ver-- tical plane. Rectilinearguideways 19 are formed in the upper face of this bracket parallel withthe goose-neck arm and a carriage 21 is mounted to slide on rollers 22along these guideways toward and away from the guide-pin 15. Thecarriage 21 itself extends for a considerable distance on either side ofthe guideways 19 (as shown in Fig. 2) and is provided on its upper facewith horizontal guideways 23 which extend at right angles to theguideways 19, i. e. perpendicular to the goose-neck arm 3. A combinedmodel carrier and pattern-board carrier 25 is mounted on the carriage 21and partakes of the movements of the carriage toward and away from theguide-pin 15 and is also free to move, on rollers 27 shown only in Fig.1, at right angles to the goose-neck arm 3 along the guideways 23 in thecarriage 21. Rollers 29 and 31 (Fig. 2) are provided respectively on thecarriage 21 and the carrier 25 to eliminate side-play between thesemembers and their guideways by bearing against the opposite sides of theguideways. The carriage 25 has a pair of clamping jaws 33 (arrangedvertically one above the other in the lower part thereof and in that endnearer to the goose-neck arm) which are adapted to clamp, in ahorizontal position, a sheet of pattern board 35 from which the patternis to be cut. The clamping jaws 33 are adapted to be closed to grip thepattern board by means of a manually rotatable cam lever 37 and areadapted to be opened when allowed to do so by a spring not shown. Theclamping jaws 33 are each carried in a horizontal position at the end ofa horizontally slidable tube-39 which is mounted in bearings in thecarrier 25. The two tubes 39 are arranged one above the other in thecarrier and are adjustable in their bearings horizontally toward andaway from the punch 7 relatively to the carrier 25 so that theclampingjaws 33 may, when a small sheet of pattern board is being usedin the machine, be moved toward the punch 7 before clamping the patternboard in order to support the pattern board for the cutting operation asnear to the cutting point as possible. The two tubes 39 are connected soas to be moved together the same distance at the same time by means of avertical pin 41 passing through the two tubes behind the bearings in theframe as shown in Fig. 1. The position of the clamping jaws 33 toward oraway from the punch is determined by a manual adjustment of the tubesalong their bearings in the carrier and the bearing for the upper tubeis split and is provided with a hand screw 43 whereby it may betightened to hold the tube securely in adjusted position. A lightframework of iron rod 45 extends horizontally from the carrier towardthe rear of the machine as shown in Fig. 2 on a level with the clampingjaws 33 to serve as a support for the margin of a large sheet of patternboard. The model holder of the combined model and pattern-board carriercomprises a flat skeleton frame 47 which, during the operation of themachine, occupies a horizontal position slightly higher than the top ofthe guide-pin 15, as seen in Fig. 1. The model or template itselfcomprises a flat plate 49 indicated in full lines in Fig. 1 and by thechain lines 49 in Fig. 2 and this plate is secured to the under side ofthe skeleton frame 47 by studs 51 passing through holes in the plate andthe plate is spaced away from the frame by distance pieces or collars sothat every part of the edge of the model 49 may be brought into contactwith the guide-pin 15 without the upper end of the guide-pin fouling theskeleton frame 47. The skelton frame is hinged at the left-hand end on ahorizontal pivot 53 to the top of the combined model and pattern-boardcarrier 25 and the frame can be swung upwardly about the said pivot ifit is desired to remove the model from the frame or to substituteanother therefor or for any other purpose. A stop 55 is provided on thecarrier 25 to maintain the skeleton frame 47 in horizontal positionduring the normal operation of the machine. The skeleton frame 47 isprovided with a number of slots, as seen in Fig. 2, extending throughfrom its upper face to its lower face, some of the slots being arrangedparallel with the guideways 19 on which the carriage 21 slides andothers being parallel with the guideways 23 formed on the carriageitself on which the combined pattern board and model carrier 25 slides.Models of different sizes or shapes may be clamped successively to theskeleton frame by the bolts 51 which pass through the slots.

The heights at which the model 49 and pattern board 35 are respectivelyheld on the model and pattern-board carrier are such that when theskelton frame is in its horizontal position the edge rosaesc" of a model19 clamped thereto will make contact with the lateral face of thevertical guidepin if the carriage is moved toward the latter while thepattern board will project horizontah 1y between the punch '7 anddie-block 9, as shown in Fig. 1.

The carriage 21 has projecting therefrom at the rear an arm 57 (Figs. 2and 6) which extends parallel to the goose-neck arm 3 toward the rightof the machine looking at the machine from the front and substantiallylevel with the top of the goose-neck arm.

Near its right-hand end this arm is provided on its upper face with ashort guideway 59 extending along the arm parallel to the goose-neckarm. This guideway is of dovetail section, as shown in Fig. 6, andreceives within it two superposed slides 61 and 63. The upper slide 61is shorter than the slide 63 beneath it and is adapted to be adjustedalong it for a purpose hereinafter explained. The lower of the twoslides 63 is also adjustable along the guideway for a purposehereinafter explained and when it is so adjusted it is adapted to carrythe upper slide with it by means of the adjusting mechanism between theslides. A trunnion 65 is mounted on a vertical pivot 67 on the upperslide and a rod 69 passes through the trunnion and is arranged to turnwith and also to move endwise horizontally through the trunnion. Thisrod will hereinafter be called the width pantograph lever. The widthpantograph lever extends horizontaly from the trunnion G5 forwardly ofthe machine over the goose-neck 3 and is there pivotally connected to anormally fixed but adjustable pivot pin 71 (see Fig. 2) which will.hereinafter be called the width pantograph center.

At point between the trunnion 65 and t .e width pantograph center 71 asseen in Fig. 2, the width pantograph lever is provided with a pin '73which projects up from its upper face and this pin enters a hole formedin a boss on a cross member of a horizontal slide 75 (Figs. 1 and 2).hereafter termed the width slide, which is guided for movement in adirection parallel to the goose-neclc arm 3 on fixed guideways '77attached to the top of the goose-neck arm. The width slide 75 isprovided with rollers which en gage the fixed guideways on the top,bottom and sides thereof to prevent objectionable looseness in themounting of the slide on the guideways and to guide the slide easily inits movements. The left-hand end of the width slide is operativelyconnected with the guide-pln aforesaid through the length gradingapparatus, as will hereinafter be more fully explained.

The width pantograph center '31 comprises a block 79 which engages in agroove formed longitudinally of the width pantograph lever 69 (as shownin Fig. 2) and which can be adjusted along the groove and the block 79is pivoted on a ver tical axis to an adjusting bar 81. This adjustingbar is mounted for sliding movement along a horizontal guideway in afixed cross member 83 extending forwardly and rearwardly on the frame ofthe machine and at its end further from the pivoted block (its forwardend) is pivotally connected at 85 to a grooved control lever 87 near oneend thereof. The other end of this control lever 87 is pivoted (ashereinafter described) to a rack-oar 91 which is mounted to slide alonga horizontal guide on the machine frame which is also arranged forwardlyand rearwardly of the machine. The rack-bar 91 is provided with a riesof graduations thereon which can be. seen through an opening 92" in thesaid guide which co-operate with a fixed mark near the opening toindicate what adjustment of the rack-bar is necessary (in conjunctionith the setting of a rotary arm hereinafter described) to produce apredetermined difference in width between the pattern and model.

The adjustment of the rack-bar 91 is obtained by means of a pinion 93(see Fig. 3) mounted on a vertical stem and provided at its upper endwith a hand-nut 95. A spring pressed catch 97 (Fi 3) is provided on therack-bar guideway to co-operate with notches the side of the rackbar tohold the latter in any position to which it has been adjusted and thiscatch is arranged near to the hand-nut on the spindle of the p nion sothat the operator can, by depressing the hand-nut (which is slidablevertically down the spindle but is normally held at the top thereof bymeans of a spring 99), release the catch to free the rack-bar before herotates the pinion to adjust the rack-bar. The control lever 37 asbefore indicated is grooved longitudinally and the pivotal connection ofthe control bar to the rack-bar comprises a vertical pin 101 secure tothe rack-bar 91 and engaging in a block 103 slidably mounted in thegroove. A second blocl: 105 is located in the groove in the control arm87 between its ends and a pivot pin 10? joins th s block to a larger blok: 109 above it. This larger block 109 (indicated only in Figs. 3 and 1)is arranged for adjustment in a guideway 111 extending in a member 113paralle to the gooseneck arm 3 on the main frame and by moving it alongits guideway or by adjusting the position of the rack-bar 91 the angularpositionof the control arm 87 may be varied thereby varying the positionof the width pantograph center '71.

The means for adjusting the larger block 199 along its guidewaycomprises a rotary arm 115 extending over the block and connected withit by means of a pin 117. The rotary arm 115 is secured to a shortvertical shaft 119 on the ma n frame, which carries at its upper andlower ends hand-nuts 121 by which the arm can be rotated to move thelarger block 199 along its guideway, the pin 11'? which connects thelarger block 109 to the rotary arin being connected to a third block 123which moves during the rotary move ments of the latter along a slotprovided in the arm. The elements 165, 10"], 109, 117 and 123 aretogether equivalent to a single p vot mounted in slots in the superposedmembers 87, 113 and 115, and the parts are so arranged that this pivotpin and the pivot 85 will be coaxial at the left end of the slot 111when the centers 71 and 73 are coaxial. The rotary arm 115 is adapted tomove around an arcuate scale 125 which is provided with graduations toindicate what is the necessary position of the arm to co-operate withthe adjustment of the rack-bar 91 to produce predetermined gradingeffect on the width of the model. Adjustable stops 12'? are provided onthe arcuate scale 125 to limit the extent to wh ch the rotary arm 115can swing in either d rection.

The rotary arm 115 is adapted to be set along the to a position in whichit indicates grade to be produced on the width of the model, fourdifferent scales being arranged concentrically one around the other asshown best in Fig. 4. Each of the four scales is marked off to representwidths of models inches. The distances. between the graduation on onescale are, however, different from the distances beits tween thegraduations on any other scale so that the four graduations f7, say, onthe four scales will occupy four different positions along the arc sothat, when grading a model seven inches wide, placing the arm 115opposite the graduation '7 on any particular one of the scales willcause a desired grade to take place or by placing the arm 115 oppositethe graduation '7 on another of the four scales a different grade willbe obtained and conveniently the four scales are so proportioned that agrade of one sixteenth, one twelfth, one eighth, or one sixth of an inchcan be obtained on the width of a model as desired by placing the arm115 opposite the graduation representing the width of the model on theappropriate scale.

To efiect grading successive sizes from the same model, at the sameincrement per size, the rackbar 91 is adjusted by means of itsgraduations which run symmetrically from its middle toward its ends.When it is set at zero the lever 87 is parallel to the goose-neck arm,irrespective of the position of the lever 115. The model can thus bereproduced 1:1 either by settting the lever 87 in this manner, 01' bysetting the lever 115 way over to the left, irrespective of the positionof the rack-bar 91, to put the pivot 85 under the slot 111, as alreadymentioned.

By the adjusting mechanism just described the width pantograph centercan be caused to move from one side to the other of the point ofconnection 73 between the width slide and the width pantograph lever.This arrangement provides means whereby the direction of the movement ofthe Width slide may be caused to take place in the same direction as orin the opposite direction to the movement of the model carriage alongits guideways 1'? according as to whether the pantograph mechanism is tobe set to produce a larger pattern than that of the model or vice versa.

From the foregoing description it will be understood that if thecarriage 21 moves on the guideways 19 toward or away from the guide-pinthe width pantograph lever will oscillate about the pantograph center 71and may therefore cause a parallel movement of the Width slide '75 andof the guide-pin 15 connected thereto. By adjusting the width pantographcenter from one side to the other of the pivotal connection 73 betweenthe width slide and the pantograph lever the direction of movement ofthe width slide for a given direction of movement of the widthpantograph lever can be reversed, and by so adjusting the pantographcenter '71 that it lies on the axis of the pin '73 the pantograph levermay oscillate about the pivot '71 without causing any movement of thewidth slide '75.

A second and separate pantograph device is provided for moving theguide-pin in a direction at right angles to the goose-neck arm in orderto. obtain the desired grading efifect on the length of the pattern.This second pantograph will hereafter be called the length pantograph.The length pantograph comprises an oscillatory lever 129 which isgenerally similar in construction to the width pantograph lever beforedescribed and this oscillatory lever will hereinafter be termed thelength pantograph lever.

This length pantograph lever is connected at I one end with the combinedmodel and pattern board carrier 25 in such a manner that the said endpartakes of those movements of the carrier which have a component ofmovement in a direction at right angles to the goose-neck arm but doesnot partake of those which take place in a direction parallel to thesaid goose-neck arm. For this purpose the said end of the lengthpantograph lever 129 passes through horizontal trunnioned bearing 131which is moimted on the upper slide 188 of two slides 188, 190 similarto the slides 61, 63, respectively, in a trolley 133 arranged to travelalong a guide bar 135 secured to the left-hand end of the width slide'75 (as shown in Figures 1 and 2) and extending horizontally in adirection perpendicular to the gooseneck arm. The trolley 133 is notsecured to the carrier 25 but it carries two depending pins of which oneis shown at 137 in Figure 2 having rollers mounted thereon and theserollers engage in a groove provided in a member 139 secured to thecombined model and pattern board carrier 25, the said groove extendingparallel to the goose-neck arm. By this arrangement the trolley 133 isconstrained to move along its guide bar when the carrier moves in adirection having a component of movement perpendicular to the goose-neckarm but it can remain stationary (due to the roller and groovearrangement aforesaid) when the carrier moves in a direction parallel tothe goose-neck arm. The horizontal trunnion 131 is adjustable along thetrolley 133 by adjustment of its upper slide carrying the trunnion for apurpose similar to that of the adjustment between the slides 61 and 63for the trunnion 65 and hereinafter described. The other end of thelength pantograph lever is pivoted on an adjustable pivot 141hereinafter termed the length pantograph centre which is carried uponthe width slide 75. The means for adjusting the length pantograph centrecomprises a slide 1 13 corresponding to the slide 81 on which the centreis mounted and which is adapted to be moved along a guideway 145arranged in the width slide '75 parallel to the gooseneck arm, thecentre moving meanwhile along a groove formed longitudinally in thelength pantograph lever and having a block 14'? mounted on it to engagethe sides of said groove as seen in Figure 2. The means for causing theslide 143 to move along its guideway comprises an angularly adjustablelever 1 19 to which the slide 143 is connected and which is arranged tooperate in a manner similar to that of the angugularly adjustable lever8'7 already described in connection with the width pantograph lever. Theangularly adjustable lever 149 is grooved longitudinally on its lowerand upper faces and receives within said grooves two blocks 151 and 153spaced along the lever the block 151 being also movable along a guideway155 on the width slide 75 arranged parallel to the goose-neck arm bymeans or" a rack 157 corresponding to the rack 91 and a pinion rotatableby a hand nut 159.

The other block 153 is pivoted to another block movable along a guideway161 mounted on the width slide '75 perpendicular to the goose-neck armand is controlled by still another block in a guideway in a rotary bellcrank arm 163 moving around an arcuate scale 165 provided withadjustable stops. Each of the blocks 151, 153 can be moved along itsrespective guideway to a desired extent in a manner similar to thatdescribed with reference to the adjustment of the width pantographcentre. bell crank in order to put its scale 165 in convenient position.

At a point between the trunnion 131 for the length pantograph lever andthe opposite end of said lever (but nearer to the latter) the lever Thearm 163 is formed as a i.

has a pivotal connection 167 with an auxiliary carrier 169 (hereinaftercalled the length slide) which is mounted to move along a guide 171fixed to the width slide '75 so as to move with the latter. The guide171 is arranged on the width slide at right angles to the goose-neck armand in such a position on the width slide that the length slide 169moves, during the movements of the model and pattern board carrier, overthe top of the punch '7.

The guide pin 15 is adjustably mounted in a disc 173 (hereinafter morefully described) which disc is carried on the length slide 169 (as shownin Figures 2, 3 and 5) near the forward end thereof (viewing themachine, from thefront) so as to move with the length slide in itsmovements along its guide and also to be carried with the width slideduring the movements thereof.

From the description thus far given it will be clear that theillustrative machine comprises a unitary model and pattern-board carrier25 which is arranged for movement in two paths at right angles and thata pantograph mechanism is provided for translating movement of thecarrier in one of the said paths into a movement of a guide pin 15 in aparallel path and that a second independent pantograph mechanism isprovided for translating movement of the carrier in the other of saidpaths into movement of the guide pin parallel to the said other path.The said movements of the guide-pin are, as described, adjustable toproduce dilferent grading effects in the pattern reproduced from amodel. It is also possible to adjust each of the said pantographmechanisms (by adjusting the positions of their centres) independentlyof the other so as to vary the width or length only of the pattern.

The mechanism thus far described is shown diagrammatically in Fig. 7. Inthis figure no attempt has been made to preserve details of constructionor relative dimensions, and parts which overlie others have been movedto one side for the sake of clearness. Slideways are shown by twoparallel lines, on both sides of the corresponding slides. Pivots areindicated by small circles, in some instances located at the sides ofthe axes of the pivotal members swinging them. The moving frames areindicated by lines, and the slideways which connect them to main frameare so marked. Set screws have been indicated on the slides at 59, 63,and 158, 193, to show that these sliding members are adjustable, thoughnormally not sliding in operation.

It possible (for example while working along a curve), to produce adesired change in grade in. the direction of the width or length of thepattern in the course of the cutting of a pattern. This efiected bychanging the adjustment of one or both of the rotary arms 115 and 163 tothe desired extent at the desired time. This operation may sometimes besimplified by approv.Nely setting the two adjustable stops aforesaid ineither of the arcuate scales 125 or 165 and by rotating the rotary armassociated with the arcuate scale between. the two stops, when desired,to adjust the position of the pantograph centre as previously describedin order to vary the grading effect produced by the pantograph. orderthat the rotary may, if desired, be moved past the stops each rotary isprovided h pivoted abutment 175 (see particularly 1) which is adaptednormally to lie in path of the said stops so as to abut against one orother of them to arrest the movement of there-around as the slide moves.

the arm and this abutment is provided with a finger piece by which theoperator may lift the abutment about its pivot 177 to allow it to clearthe stop.

An adjustment in the position of one of the;

will move the guide pin relatively to the carriage 25. Although such amovement of the guide pin is not undesirable in every case, where achange of grade is desired it will nevertheless in certain other casesprevent the best results being obtained in the graded pattern unless itis corrected.

Means is provided in the illustrated machine to enable such a correctionof the guide pin pos t to be made simply and quickly when desired. Forthis purpose one indicator 179 (see, Figure 2) is arranged on the widthslide '75 and another indicator 181 is arranged on the length slide 169by which the extent of the disturbance in position of the guide pin dueto. adjustment in position of the width or length pantograph centre isindicated. Each of these indicators comprises as shown 'in Figure 2 agraduated disc moving with its respective slide and having an indicatinghand adapted to travel The indicating hand is mounted at theupper end ofa vertical spindle passing through the disc and having upon its lowerend a pinion which meshes with a fixed horizontal rack on the main framein the case of the indicator 179 and on the guide 1'11 in the case ofthe indicator 181. By observing the reading on the indicating disc onthe length or width slide (according as to whether an adjustment is tobe made in the position of the length or width pantograph centre) beforeand after the adjustment is actually made an indication may be obtainedof the change in position of the guide pin occasioned by the adjustmentof the centre. The correction for this movement is made by adjusting thetrunnion bearing 131 or 65 along its, carrier to cause a swingingmovement of the corresponding pantograph lever about its centre 141 or'71 in a direction to restore the guide pin to its original position asindicated by the indicator disc after the adjustment of thepantographcentre has been made. The means for shifting the position of eachtrunnion bearing comprises a rotary hand wheel 183 mounted on the top ofthe combined model and pattern board carrier 25 and connected with theends of two pairs of Bowden wire cables 185 and 187 the other ends ofeach pair being connected to opposite sides of one of the trunnionbearings in such a manner that rotation of the hand wheel 183 can causethe trunnion hearings to move along their slides. In the case of thetrunnion bearing 65 the sleeve of the cable is fast to the slide 63 andthe two wires are fastened to the ends of the slide 61, the further wirerunning over a little pulley 184 mounted on the slide 63. In the case ofthe short relatively rotatable vertical shaft 189 carrythe widthpantograph lever.

ing at its lower end in a casing 191 below the hand wheel a small pinion289 which engages with a horizontal rack 290 mounted on a slide 291 alsoarranged in the casing 191. The slideway 293 in which the rack moves isa diametral groove in a drum 295 integral with the hand wheel 183 andmay be turned in the casing 191 thereby. This rack slide 291 carries adepending pin 29'? normally coaxial with the shaft 189, which passesdownwardly through a slot 192 formed in the cross bar of a cruciformslide member 193 below the casing 191, the unslotted arm of which isadapted to move in a direction parallel to the goose-neck arm and hasattached to each of its ends one wire of the pair of wire cables 185which are connected at their other ends to the slide 61 for the trunnionbearing for The depending pin extends downwardly through the said slot192 into a slot 299 arranged at right angles to the slot 192 in thecross bar of a second cruciform member indicated at 195, the unslottedarm of which is adapted to move in a direction perpendicular to thegoose neck arm and this second cruciform member has attached to each ofits ends one wire of the pair of wire cables 18'? which are connected attheir other ends to the slide 188 for the trunnion bearing 131 for thelength pantograph lever. As shown in Figures 1 and 2 the wire 187 whichis connected to the forward end of the member 195 passes upwardly arounda pulley 197 to its point of connection with the member. The wiresconnected to the slide 193 run around four idler pulleys 301. The shortvertical shaft 189 which carries at its lower end the pinion aforesaidhas a handle 199 at the upper end thereof by which the shaft may berotated within the hand wheel 183 to move the rack slide aforesaid to anextent indicated by a scale on the top of the hand wheel 183. Adjustablestops (not shown) are provided around the scale which may be securedthereto at desired positions and between which the handle 199 can berotated when desired to adjust the positions of the trunnion bearingsbetween predetermined limits and not merely in response to needs shownby said indicators 1'79, 181. The said rack slide as above stated, ismounted to rotate with the hand I wheel 183 (when the latter is rotated)and when the hand wheel has turned the rack into a position parallel tothe goose-neck, the rack slide will cause the depending pin to move thecruciform member 193, (the depending pin moving idly meanwhile. alongthe slot in the member 195) thereby effecting an adjustment of onetrunnion bearing and when the handwheel occupies another position atright angles to the position last mentioned,'movement of the rack slidewill cause the depending pin to move the member 195 (the depending pinmoving then idly along the slot in the member 193) thereby effecting anadjustment of the other trunnion bearing. At a po sition between the twopositions just mentioned movement of the rack slide will cause amovement of both cruciform members and therefore of both trunnionbearings resulting in an adjustment of the guide pin along both thewidth and the length slides.

The arrangement of the cruciform members and of the movable trunnionbearings while as just described available to meet needs for correction,as shown by said indicators 1'79, 181, is however also particularlyuseful for restricting, when desired, the grading effect produced by themachine. By means of the handle 199 the positions of the trunnionbearings may be adjusted to give the desired amount of restriction andby rotating the hand wheel 183 as the model travels around the guide pinso that the depending pin on the rack slide moves the adjusting member193 for the trunnion bearing 65 of the width pantograph lever or theadjusting member 195 for the trunnion bearing 131 of the lengthpantograph lever or both (according to whether the width or length ofthe model is being graded at the moment or whether the machine isoperating around a curve) the correct restriction will be transferred tothe pattern therearound. For example, suppose that the pin dependingfrom therack-bar has been moved a distance, (1, off center by the shaft189, while the slotted crossed slides are in their neutral positions asregards rotation (parallel to the length and width of the pattern).Suppose the pin then to be revolved by the hand wheel 183 and itsassociated parts. It will travel in a circle of radius a, and willimpart to the crossed cruciform slides movements proportional to thesine and cosine of the angle through which it revolves. Movementsproportional to these movements will be imparted to the control slides(61 and its analogous slide at the end of the width pantograph lever129130), and the model guide 15 will thereby be carried around in acircle. If then the rotation of the hand wheel 183 follows substantiallythe angular swing of the tangent to the edge of the model at the pointin contact with the model guide 15, a uniform grade restriction will beproduced around the edge of the work during the time the apparatus ismade eifective by the operator. Stating the matter somewhat moretechnically, the pin on the rackbar will impart to the cruciform slidesand the control slides two simple harmonic motions at right angles toeach other, and differing 90 in phase, and the composition of two suchmotions of equal amplitudes (for which the machine is designed) is acircular motion. To enable the hand wheel to be rotated at the correcttimes and for the correct amounts to adjust the trunnion bearingscorrectly the disc 173 in which the guide pin is mounted is arranged ona rotatable member 201 as hereinafter described which rotatable memberis coupled to the hand wheel 183 as will appear, to be rotated therebyin the same direction as the hand wheel and for the same angulardistance. The disc 1'78 has a slot 208 formed radially therein. Byturning the hand wheel to maintain the slot 203 constantly perpendicularto the edge of the model the desired restriction will be correctlytransferred from the length to the width pantograph (or vice versa) atthe proper time. However when operating around a curve the movements ofthe cruciform members will automatically vary the restrictions (if thecircumstances call for the same) to give the correct resultant of thewidth and length restrictions. Means is also provided in the illustratedmachine whereby a seam (or like) allowance may be added to a gradedpattern. For this purpose the guide pin 15 is made adjustable on itscarrier. The guide pin is carried at the upper end of a vertical studwhich passes through the slot 203 in the member 1'73 and the stud hassecured to it at its lower end a pinion (not shown) meshing with ahorizontal rack 205, see Figure 5, secured to the member 1'73. The guidepin may be moved along the slot 208 by rotation of a knurled nut 20'?which is provided on the stud just below the guide pin whereby the studcan be rotated to cause it to carry the guide along the slot (by meansof the rack and pinion engagement) to a position in which it is situatedmore or less eccentlically or the axis of the member 173. A circularscale 209 is mounted on the stud to rotate with it to give an indicationoi th eccentric setting of the guide pin at any time. Adjustable stops211 and 213 are provided on the member 173 to limit the extent ofadjustability of the guide pin along the slot 283. The member 173 isarranged to be rotated on ball bearings about its axis has provided on ia drum like member 215 (forming part of the member 201) to which aresecured the ends of a third pair of flexible wire cables 21'? theopposite ends of this third pair being wound on the drum 295 which maybe turned by the hand wheel 183 so that rotation of the hand wheelcauses a corresponding and equal rotation of the 1'73. By this means itis possible to adjust the guide pin along its slot in the disc to give adesired allowance and by turning the hand wheel 183 while working arounda to maintain the desired allowance correctly any part of the patternirrespecive of any change in curvature in the shape of the model. Thisis achieved so turning the hand wheel 183 that the slot 283 along whichthe guide pin be adj ted will remain perpendicular to the of 'ne modelas the latter is in around the guide-pin in contact with it. The pin onthe rack slide will ordinarily be in its central position during such anoperation.

times during the movement of the cor oined. model and pattern boardcarrier the width pantograph lever 69 may occupy such a position that is(when the lever is in this make a change in the position of 2h centre(and therefore effect a change .uced by movements of the lever) arcingthe positc-n of guide pin. t e said position the pantograph lever liesin direction of movement of the arries the width pantograph centre '71ent e he moved along the groove r i lever without disturbing the po n orthe lever. A slot 215} (or as shown a es of slots in alignment) isprovided in siie eton model holder vich is parallel to the 9 the latteroccupies the position slot is so placed on the pattern line lies in thesame verice the said position.

Wei should wish to grade a part (say "nple a bar or tongue of a shoevainp) a proportional amount that he has used around the re o the model,he can secure the model del carrier s; so that median line aalte an inthe panto produce the desire when guide pin he said part and when 11 raches a point on the other of the p position to the pc t he e rea wirr'a e. m L m N en ine. au uctniciit without ts he has made will disturbthe relation of that part to the pattern he is cutting. v

Also it is possible without difficulty to produce similar changes in thegrading effect at to points on a model which are located equidistantlyon opposite sides of the centre line of the slot it being only necessaryat each point (in addition toadjusting the pantograph centre to give thedesired result) to adjust the respective trunnion bearing to correct theposition of the guide pin which would be disturbed by the change ingrade (as hereinbefore indicated) the amounts of restriction necessaryat the two points being of equal amounts. by placing an edge or" a modelbeneath the centre line of the slot 219 it is possible to obtain achange in grade widthwise of that edge by making m rely an adjustment inthe posi tien or" the width pantograph centre. In case the model shouldbe so large that it cannot be proper- 1y positioned on the model carrierwith respect to the slot 219 a second series of slots 221 parallel tothe slots 219 may be arranged on the model holder further from the pivotfor the model holder on the combined model. and pattern board carrier.Provision is made for moving the trunnion bearing of the widthpantograph lever along the guideway 59 to an extent equal to thedistance between the two series of slots 219 and 221 so that when thecentre line of the slots 221 lies above the the width pantograph leverwill be in line with the adjustable link 81 carrying the pantographcentre.

This adjustment of the trunnion bearing is effected by a movement of tie low r slide 63 of the two slides 61, 63 on which the trunnion bearingmounted and it can he moved along its guideway and to carry the trunnionbearing with it an. amount equal to the distance (indicated by the marks223 on the member 5?) between the slots and 221 a spring-pressed pinindicated at 225, Fleur 6, engaging holes guideway provided to hold theslide in one position or the other. To allow the length pantographcentre 141 to be adjusted without disturbing the position oi the guidepin a series of slots 22'? is likewise provided on the skeleton modelholder perpendicular to the slots aforesaid the centre line or" whichwill lie in the same plane the of the punch when the length pantographlever is in line with the adiustable lint: 143 carrying thlengthpantograph centre 1. e. when a change grade be made on the engthpanttical. pivot 231011 the combined model and pattern '3 and the saidlever is adapted to be swung about pivot to the jaws to an operative po.ion beneath the skeleton frame from normally inop tive position (remotefrom the opera ing loca". .ty) indicated in chain in Figure 2, When apattern 234 has been out from the pattern board may be clamped between te jaws when the latter are in their nor-- mally inoperative position (asindicated in Figu 'e 2) and swung by a handle 233 connected lines at 229loo with the jaw-carrying lever 232 into position over the remainingpart of the pattern board near to the punch to indicate to the operatorwhat adjustment of the pattern board is necessary to allow anothersimilar pattern to be cut therefrom.

It is possible, by making the guide pin 15 movable, to substitute pinsof varying thickness for the guide pin in the machine at any time inorder to add to or subtract from the, area of the pattern a strip ofconstant width in the manner well known in the art.

The robust construction of the arms 8 and 5 eliminates to a large extentthe possibility of the pLmch-carrying arm 3 springing away from the workif the latter should be of hard material such as metal. In fact thevarious parts of the machine have been so designed as to allow it notonly to operate on relatively soi metals such as zinc but also onrelatively hard and long-wearing metals such as that commercially knownas charcoal iron or other sheet iron.

Although sheet iron has hitherto been considered very useful materialfor making patterns, no pattern grading machine has hitherto (as far asis known) been able to work directly on such material on account of itshardness.

In order that the illustrative machine shall'be capable of operating onsheet iron, not only is the punch-carrying head made specially robustbut other parts of the machine have likewise been made specially strongand rigid. For example, the pantograph mechanisms have been made ofstrong and generous proportions to take care of the strains imposed onthem by the increased pressure with which the operator of the machineconsciously ,or unconsciously urges the model against the guide pin whenthe machine is operating on sheet iron. Further the pattern-material andmodel carrier has been designed to be of such strength as not to allowthe pattern material clamps and. the skeleton model-carrier to springlaterally relatively to each other. The punch has also been given arelatively long stroke so that the sheet metal may be fed forward adistance more nearly equal to (though still considerably less than) thediameter of the punch while the punch is out of the work than it couldbe if its stroke were short. This found to be helpful in allowing thepunching operation to be efiected cleanly as it is found that a veryshort feed of the work between the reciprocations of the punch tends tocause the edge of the pattern being cut to be bent downwardly.Conveniently when the illustrative machine is being used for operatingon sheet metal, say one sixteenth of an inch thick, the stroke of thepunch is such that it rises approximately five sixteenths of an inchabove the upper face of the work and the speed of rotation of the punchshaft may conveniently be two thousand revolutions per minute. It isalso found that a blunt ended punch one eighth of an inch. diameter issuitable for the operation.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. In a pattern copying machine, four primary instrumentalities, namely,a model holder, a work holder, a model guide and a tool, mechanismsinterconnecting them for pantographically reproducing a model in a workpiece, said pantographic mechanism being adjustable to vary themagnification factor, means for measuring a relative movement between aplurality of the said primary instrumentalities due to a change in themagnification factor efiected by said adjustment during the productionof a work piece, and means for compensating for such relative movement.

2. In a pattern copying machine, four primary instrumentalities, namely,a model holder, a work holder, a model guide and a tool, mechanisminterconnecting them for pantographically reproducing a model in a workpiece, said pantographic mechanism being adjustable to vary the manification factors in length and width independently, means for indicatingthe amount of relative movement between two of the said primaryinstrumentalities due to a change in a magnification factor effected bysaid adjustment during the production of a work piece, and means forcompensat ing for such relative movement.

3. In a pattern copying machine, four primary instrumentalities, namely,a model holder, 2. work holder, a model guide and a tool, and meansincluding a pantograph lever connecting a plurality of them forpantographically reproducing a model in a work piece, one fulcrum of thelever being adjustable along the lever to vary the pantographicadvantage of the lever, and means for moving the lever about one of itsoperative fulcra to compensate for any relative movement among theprimary instrumentalities produced by the adjustment of the saidadjustable fulcrum.

4. In a pattern copying machine, four primary instrumentalities, namely,a model holder, a work holder, a model guide and a tool, and meansincluding a pantograph lever connecting a plurality of them forpantcgraphically reproducing a model in a work piece, one fulcrum of thelever being adjustable along the lever to vary the pantographicadvantage of the lever, and means for moving the lever to compensate forany relative movement among the primary instrumentalities produced bythe adjustment of the said adjustable fulcrum.

5. In a pattern copying machine, four primary instrumentalities, namely,a model holder, a work holder, a model guide and a tool, and meansincluding a pantograph lever connecting a plurality of them forpantographically reproducing a model in a work piece, one fulcrum of thelever being adjustable along the lever to vary the pantographicadvantage of the lever, and another fulcrum of the lever beingadjustable to compensate for relative movement of the primaryinstrumentalities due to an adjustment of the firstnamed fulcrum.

6. In a pattern copying machine, four primary instrumentalities, namely,model holder, a work holder, a model guide and a tool, and meansincluding a pantograph lever connecting a plurality of them forpantographically reproducing a model in a work piece, one fulcrum of thel ver being adjustable along the lever to vary the pantographicadvantage of the lever, and another fulcrum of the lever beingadjustable in a direction transverse to the lever to compensate forrelative movement of the primary instrumentalities due to an adjustmentof the first-named fulcrum.

'7. In a pattern copying machine, four primary instrumentalities,namely. a model holder, a work holder, a model guide and a tool,connections between said primary instrumentalities, comprising a slideand a pantograph lever fulcrumed upon said slide, for pantographicallyreproducing a model in a work piece, a second fulcrum of said leverbeing adjustable to vary the pantographic advantage of the lever, andmeans for adjusting the third fulcrum of the lever in a directionparallel to: the direction of movement of said slide to compensate for arelative movement of a plurality of said primary instrumentalities due.to an adjustment of the second fulcrum.

8. In a pattern copying machine, four primary instrumentalities, namely,a model holder, a work holder, a 'model guide and a tool, twopantographic mechanisms connecting them for pantographically reproducinga model in a work piece in length and breadth independently, saidmechanisms being adjustable to vary the pantographic magnificationfactors thereof, a compensating mechanism for each pantographicmechanism for compensating for relative movement of the primaryinstrumentalities due to such adjustment of the correspondingpantographic mechanism, and a single member for operating saidcompensating mechanisms. I

9. hi a pattern copying machine, four primary instrumentalities, namely,a model holder, a work holder, a model guide and a tool, means includinga pantograph lever connecting them, one fulcrum of said lever beingadjustable along the lever to vary the pantograpl'nc advantages of thelever, and a-slide running generally transversely to the lever andcarrying a second fulcrum thereof, said slide being adjustable tocompensate for relative movement of the primary instrumentalities due tochange in adjustment or" the first-named fulcrum.

10. In a pattern copying machine, four primary instrumentalities,namely, a model holder, a work holder, a model guide and a tool, meansincluding a pantograph lever connecting them, one fulcrum of said leverbeing adjustable along the lever to vary the pantographic advantage ofthe lever, a slide running generally transversely to the lever andcarrying a second fulcrum thereof, and means for adjusting the slide tocompensate for relative movement of the primary instrumentalities due tochange in adjustment of the firstnamed fulcrum.

11. In a pattern copying machine, four primary instrumentalities,namely, a model holder, a work holder, a model guide and a tool, meansincluding two pantograph levers connecting them, one fulcrum of each ofsaid levers being adjustable along its lever to vary the pantographicadvantage of that lever, slides arranged to move generally transverselyto the axes of the levers respectively, on which second fulcrums of thelevers are respectively mounted, and a single means for moving theslides.

12. In a pattern copy ng machine, four primary instrumentalities,namely, a model holder, a work holder, a model guide and a tool, meansincluding two pantograph levers connecting them, one fulcrum of each ofsaid levers being adjustable along its lever to vary the pantographicadvantage of that lever, slides arranged to move generally transverselyto the axes of the levers respectively, on which second fulcrums of thelevers are respectively mounted, and a single means comprising flexibleconnections for moving the slides.

- fulcrum of each of said levers being adjustable along its lever tovary the pantographic advantage of that lever, slides arranged to movegenerally transversely to the axes of the levers respectively, on whichsecond fulcrums of the levers are respectively mounted, and a controlmember arranged to impart simultaneous simple harmonic motions to saidslides.

14. In a pattern copying machine, four primary instrumentalities,namely, a model holder, a work holder, a model guide and a tool, meansincluding two pantograph levers connecting them, one fulcrum of each ofsaid levers being adjustable along its lever to vary the pantographicadvantage of that lever, slides arranged to move generally transverselyto the axes of the levers respectively, on which second fulcrums of thelevers are respectively mounted, and a control arranged to displace saidslides by amounts proportional to the cosines of the angles which theedge of the model pattern at the point being reproduced makes with thedirections respectively in which said pantograph levers grade.

15. In a pattern copying machine, four primary instrumentalities,namely, a model holder, a work holder, a model guide and a tool, meansincluding two pantograph levers connecting them and operating in lengthand width independently, one fulcrum of each of said levers beingadjustable along its lever to vary the pantographic advantage of thatlever, slides arranged to move generally transversely to the axes of thelevers respectively, on which second fulcrums of the levers arerespectively mounted, two slotted cross slides connected respectivelywith the first-mentioned slides and arranged to transmit movement tothem, and a revoluble pin located in the slots for moving the crossedslides.

16. In a pattern copying machine, four primary instrumentalities,namely, amodel holder, a work holder, a model guide and a tool, meansincluding two pantograph levers connecting them, one fulcrum or" each ofsaid levers being adjustable along its lever to vary the pantographicadvantage of that lever, slides arranged to move generally transverselyto the axes of the levers respectively, on which second fulcrums of thelevers are respectively mounted, two slotted crossed slides connectedrespectively with the first mentioned slides and arranged to transmitmovement to them, and a circularly revoluble pin located in the slotsfor moving the crossed slides.

17. In a pattern copying machine, four primary instrumentalities,namely, a model holder, a work holder, a model guide and a tool, meansincluding two pantograph levers connecting them, one fulcrum of each ofsaid levers being adjustable along its lever to vary the pantographicadvantage of that lever, slides arranged to move generally transverselyto the axes of the levers respectively, on which second fulcrums of thelevers are respectively mounted, two slotted crossed slides connectedrespectively with the first-mentioned slides and arranged to transmitmovement to them, a circularly revoluble pin located in the slots formoving the crossed slides, and means for varying the radius ofrevolution of the pin.

18. In a pattern copying machine, four primary instrumentalities,namely, a model holder, a work holder, a model guide and a tool, meansincluding two pantograph levers connecting them, one fulcrum of each ofsaid levers being adjustable along its lever to vary the pantographicadvantage of that lever, slides arranged to move generally transverselyto the axes of the levers respectively, on which second fulcrums of thelevers are respectively mounted, two slotted crossed slides connectedrespectively with the first-mentioned slides and arranged to transmitmovement to them, a pin located in the slots in the crossed slides, arotatable member on which said pin is eccentrically mounted, wherebysaid pin may be moved to impart displacements to the slides proportionalto the sine and cosine respectively of the angle through which the pinhas been revolved by the rotating member, and mechanism indicating theorientation of said rotatable member whereby a certain radius of therotatable member may be maintained parallel to the edge of the model atthe point being reproduced.

19. In a pattern copying machine, four primary instrumentalities,namely, a model holder, a Work holder, a model guide and a tool, meansincluding two pantograph levers connecting them, one fulcrum of each ofsaid levers being adjustable along the axis of itslever to vary thepantographic advantage of that lever, slides arranged to move generallytransversely to the axes of the levers respectively, on which secondfulcrums of the levers are respectively mounted, two slotted crossedslides connected respectively with the first-mentioned slides andarranged to transmit movement to them, a pin located in the slots in thecrossed slides, a rotatable member on which restate 20. In a patterncopying machine, four primary instrumentalities, namely, a model holder,a work holder, a model guide and a tool, and a member rotatable in aplane parallel to the plane of the model, and having a slot in which themodel guide is adjustably mounted, whereby any displacement of the modelguide in the slot may be kept perpendicular to the edge of the model atthe point in contact with the model guide.

21. In a pattern copying machine, a pantograph lever having anadjustable fulcrum to vary the rate of grade efiected by the lever, andmeans for adjusting said fulcrum comprising two inde-- pendentlyadjustable members, the first of which determines directly a certaingrade per unit of length travel along a model and the second of whichdetermines successive simple multiples of the grade determined by thefirst.

22. In a pattern copying machine, a pant-o graph lever having anadjustable fulcrum to vary the rate of grade effected by the lever, andan adjusting lever effecting such adjustment of the said fulcrum, saidlever having one of its fulcra connected to the said adjustable fulcrumand having its other two fulcra independently adjustable, the adjustmentof one of said fulcra deter mining a certain grade per inch of travelalong the model, and the adjustment of the second of said fulcradetermining a multiple of said grade corresponding to the number ofsizes the machine is grading away from the model.

THOMAS AUBREY KESTELL.

lit

CERTIFICATE OF CORRECTION.

Patent No. 1,953,236. April 3, 1934.

THOMAS AUBREY KESTELL.

It is hereby certified that error appears in the printed specificationof the above numbered patent requiring correction as follows: Page 9,line 103, claim 15, for cross" read crossed; and that the said LettersPatent should be read with this correction therein that the same mayconform to the record of the case in the Patent Office.

Signed and sealed this 19th day of June, A. l). 1934.

Bryan M. Battey (Seal) Acting Commissioner of Patents.

